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Unit4AmazingScienceTopic1Whenwasitinvented?SectionB()1.He___playcomputergamesunlesshefinishedhishomework

.A.wasallowedtoB.wasnotallowedtoC.allowto()2.Weallknowthatpaper___wood.A.ismadeofB.ismadeintoC.ismadefrom()3.Thiskindofmachine___in2006.A.isinventedB

.ismadeC.wasinvented()4.A(An)___isusedfortakingphotos.A.CameraB.LiftC.MP3player()5.Weshouldspendmoretime

___becauseit’stooimportant.A.tolearnEnglishB.learningEnglishC.inEnglishBCCABI.Choosetherightanswer.Youcandoit.II.Fillintheblankswiththerightpreposi

tion.1.Thedeskismade_____wood.2.Theredwineismade_____grapes.3.Thisdeliciouscakewasmade___mymother.4.Glassesaremade___glass.5.Ou

rgroupismadeup___fourstudents.6.Thatkindofmachineismade_____Japan.offromofofbyininvent/America/in1946A:Wherewerecomputersinvented?B:Theywereinv

entedinAmerica.A:Whenwerecomputersinvented?B:Theywereinventedin1946.Lookandtalkaboutthepicture.MP3player1998Korealistent

omusicmobilephone1973AmericacommunicateeasilyPleasechooseonetotalkabout.digitalcamera1975AmericatakephotosA:Wha

t’sthis?B:It’s…A:Whenwasitinvented?B:Itwasinventedin…A:Whoinventedit?B:…1bListento1aandchoosethecorrectanswers.()1.WhereareMichaelandJane?A.

Inthesciencemuseum.B.Attheschoollibrary.C.Inthezoo.D.Inthepark.()2.Whichobjectisnotmentionedintheconvers

ation?A.Lightbulb.B.Airplane.C.Television.D.Radio.AC1aLook,listenandsay.Whenwasitinvented?Whoinventedit?Lo

ok,alightbulb!In1897,ThomasEdison.In1895in1903in18791cRead1aandcompletethetable.InventionInventorYearlightbulbGuglielmoMarcon

i1903radioairplaneThomasEdisonWilburandOrvilleWright187918951aLook,listenandsay.动画1a1dDiscusswithyourclassmatestheinventionslistedin1c.Le

tthemguesswhichinventionyouaredescribing.Youmaybeginlikethis:Itiswidelyusedbypeopleeverywhere.Itwasinventedin1879byThomasEdis

on.It’ssaidthat…A:Whatarethese?B:…A:Whenweretheyproducedfirst?B:…A:Whatweretheymadeof?B:…Doyouknow?2Fillintheblankswiththeprope

rformsofthegivenwords.Thefirstjeanswereproducedin1855.Atthattime,they___________(notcall)jeansandtheywerejustha

rd-wearingpantsdesignedforworkers.Thepants_____________(make)ofthebrowncloth.Thiskindofcloth______usua

lly________(use)formakingtents.Nowadays,theirmaterialshavebeenchangedsothatitfeelsmorecomfortable.Andmanydifferentjea

nsstyles_______also________(create).They___________(design)notonlyforworkersbutalsoforteenagersandwomen.Laterjeansarepopularallove

rtheworld.werenotcalledweremadewasusedarecreatedaredesignedA.KarlBenzC.AlexanderGrahamBellB.JohnBairdIn

ventionInventorYeara.1926b.1876c.18853Listentothethreepassages.Matchthepictureswiththefollowinginformation.4aReadthefollowingwor

ds.Listenandcheckthevowels.rocketcottonhospitalmodelsatellitecameralaptopplastic4bListenandreadthefollowingsentenc

esaloud,payingattentiontothestressandintonation.Thenusethewordsin4atomakeupsimilarconversations.A:`Whenwas

the`digitalcamera`developed?B:Itwas`developedinthe`1970s.A:Isthe`digitalcamera`developedin`Korea?B:`No.A:`Wherewasit`developed?

B:Itwas`developedin`Japan.1.Thelightbulbisw______usedbypeopleeverywhere.2.ThomasEdisoni_______thelightbulbin1879.3.I

t’ss______thatheinventedmorethantwothousandthingsduringhislife.4.TheairplanewasinventedbyWilburandOrvilleWrightin1903.It

’sd______fromtoday’s.idelynventedaidifferentWelearn:1.Somewords:bulb,airplane,hard-wearing,Korea2.Somephrases:beusedby,morethan,bedifferentfrom3

.Somesentences:It’ssaidthatheinventedmorethantwothousandthingsduringhislife.Wecan:1.Usethesimplepastpassivevoice:Doyou

knowwhenitwasinvented?Itwasinventedin1879.2.Talkabouttheinventorsofsomegreatinventions.•Read1a.•Memorizetheusefulexpre

ssionsandkeysentencesthatwelearntoday.•FinishSectionBinyourworkbook.•PreviewSectionC.